<template>
  <div class="icons">
    <swiper :options="swiperOption">
        <swiper-slide v-for="(page, index) of pages" :key="index" >
            <div class="icon" v-for="item of page" :key="item.id">
                <div class="icon-img">
                <img class="icon-img-content" :src="item.imgUrl">
                </div>
                <p class="icon-desc">{{item.desc}}</p>
            </div>
        </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcon',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
.icons >>> .swiper-container
    height:0
    padding-bottom:50%
  .icons
    margin-top:.1rem
    .icon
        position:relative
        overflow:hidden
        float:left
        width:25%
        height:0
        padding-bottom:25%
        .icon-img
            position:absolute
            top:0
            left:0
            right:0
            bottom:.44rem
            box-sizing:border-box
            padding:.1rem
            .icon-img-content
                display:block
                height:100%
                margin:0 auto
        .icon-desc
            position:absolute
            left:0
            right:0
            bottom:0
            height:.44rem
            line-height:.44rem
            color:#333
            text-align:center
            overflow:hidden
            white-space:nowrap
            text-overflow: ellipsis
</style>
